blessing



2 Shets-Sheet 1.

(No Model.)

J. H. BLESSING.

STEAM TRAP. No. 295,224. o atented'Marf18, 1884.

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(No Model.) 2 SheetsSheet 2. J. H. 'BLESSING.

, STEAM TRAP. N0. 295,224. Patentedkivl ar. 18, 1834,

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STEAM-TRAP.

SPECIFICATION forming part of Letters Iatent No. 295,224, dated. March 18, 1884.

Application filed October 17, 1883. (No model.)

To (0525 whom, it may concern.-

Be it known that I, J anus H. Brnssnve, of Albany, county of Albany, and State of New York, have invented certain newand useful Improvements in Steam-Traps, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, and to the letters of reference marked thereon.

This invention relates to that class of steamtraps thatallow the waters of condensation to flow into a tank open to the atmospherawhence it is pumped back into the boiler by means of a force-pump.

The purpose of my present invention is to produce a steam-trap that will allow the condense d water to pass into the tank, from whence it is returned to the boiler, and to prevent the escape of steam. This I accomplish by means of the floating power of water acting on the under side of a floating bucket, which inits turn serves to operate the valve for the escape of the water, and a loosely-fitted piston for the escape of the air, and a cylindrical strainer for preventing dirt from entering the trap, that can readily be taken out for cleaning purposes.

My invention will be readily understood from the accompanying drawings, in which similar letters represent similar parts, and in whi ch- Figures 1 and 4 are vertical sections through the trap, showing the receiving and the dis charging passages and the different positions of the buckets. Figs. 2 and 3 are enlarged views of the cylindrical strainer. Fig. 6 is a plan view. Fig. 5 is a vertical view thereof. Figs. 7 and 8 are enlarged views of the dis charge'pipe removed from the trap. Figs. 9, 10, and 1.1 are also enlarged views of the slid- A represents the case or exterior of the trap; B, the bucket, made enough smaller in diameter to form the annular space U between the outer case and the bucket.

K represents thesteain and water inlet, and

is threaded to receive the drip-pipe connect-- ing with the heating system; I, a pendent escape-pipe secured to the under side of the bonnet R, and arranged within the bucket B so as to extend nearly to the bottom of the latter, but so that the bucket B can freely re ciprocatc in a vertical direction independently of said escapepipe. The lower end oil the escape-pipe P is provided with a valveseat, containing the port V, for theescape of water therethrough into said escapepipe. The bucket B is arranged to reciprocate vertically upon the central guide-rod, g, and is provided with a tube, X, which surrounds said central guiderod. Said tube is provided with collars n n, that act against one end of the three-ended lever G, pivoted at S to the escapepipe P. The rising-and-falling movement of the bucket imparts a vibratory motion to the lever G. The arms 0 of said lever control a sliding valve, T, situated on the hori zontal valve at the lower end of the pipe P, and the other end, 0, of thearin G is connected .to a loosely-fitted piston, d.

On oneside oft-he shellA is formed apocket, H,-to receive the cylindrical strainer F, which is held in its position by the lower end resting on the annular projection O, and its upper end by the screw-plug h. The diameter of said cylindrical strainer should be snfiicient-ly small to produce an annular space, m, between it and the walls of the pocket H. The casing A. is provided with a bonnet, R, which contains a passage, L, for the escape of the water; and the escape-pipe is secured to the under side of said bonnet in such manner that a continuous dischargeopening will be formed from the port V to the exterior of the trap. The guiderod 51 is held in a central position by two small in the bottom of the case A, and the other on the lower side of the, bonnet R, as shown in Figs. 1 and 4, the said bosses having perforations of a sufficient depth and size to securely vertical movement to impart to the lever G the requisite motion to effect the reciprocating movements of the valve T and piston d. The valve T is provided with the opening V, which conforms-on the under face of said valve-to the port V, (i n the valve-seat of the escape-pipe R) but which expands upwardly, so as to form sharp edges for said opening at the face of said valve, so that as the valve is reciprocated it will scrape from off the valve-seat any deposition of dirt.

The operation of my machine can now be understood. Water enters the apparatus by hold the rod 9. The bucket B has sufficientbosses, J and J, the first of which is formed the pocket H, and. then passes through the cylindrical strainer F into the annular space U between the outer case and the bucket, and, as is shown in Fig. 1, the apparatus does not contain any water. The bucket is in its lowest position, and the upper collar, n, on the guiding-tube N is in contact with the end of the lever Z," and in this position the valve T,

with its port V, is directly over the port or passage V; and as the water continues flowing into the space U, it will in time receive enough water to overcome the weight of the bucket B, thereby causing the bucket to rise, bringing the lower collar, n, in contact with the under side of the end of the arm Z, there by moving the lever G to carry the valve T into position to close the port V, to prevent an escape of any water or steam through said port, and to move the piston (Z in the air-vent hole I), so as to prevent any accumulation of dirt in said vent-hole. In accomplishing this the parts will be in the position shown in Fig. 4, wherein the bucket B is raised, so that the upper end of the tube N is in contact with the boss J, and will remain there until the water has filled the annular space U and has entered into the bucket Bin sufficient quantity to overcome the buoyancy of said bucket. Thelatter then descends and 1novesby means of the lelever G.the valve T to open the port V, so that the pressure of the steam, acting on the surface of the waterin the bucket 13, will cause the water to flow upward through the escapepipe P, and from thence bedischarged from the apparatus until the floating power of the water outside of the bucket B again overcomes the weight of said bucket and its contents,

whereupon the bucket B will rise, in the man ner described, to effect the operations above set forth; andin the manner described -the apparatus will continue to operate so long as any water, under into the casing A.

WVhat I claim as myinventio'n, and desire to secure by Letters Patent in the United States,

1. I11 a steanrtrap, the combination, with a floating bucket adapted to reciprocate vertipressure, continues to flow cally, as herein set forth, of the mechanism,

substantially as d scribed, for operating a slide-valve, so as to alternately cover and uncover a discharge-opening through which the water contained in said bucket is discharged, in the manner herein specified.

2. In a steam-trap, the combination, with a floating bucket arranged to reciprocate, as herein described, of a slide-valve adapted to cover and uncover adischargeopening for the escape of the water contained in said bucket, and mechanism, substantially as described, for effecting the movements of said slide-valve by means of the reeipro'cations of the floating bucket, substantially in the manner herein specified.

3. In a steam-trap, the combination, with a floating bucket adapted to reciprocate verti cally, as herein set forth, of the mechanism, substantially as described, for the purpose of imparting alternate reciprocatory motions to a sliding valve and a loose piston, in the manner and for the purpose herein specified.

4. In a steam-trap. the combination, with a floating bucket, B, and a lever, G,'connected with and vibrated by said bucket, as herein set forth, of a movable piston, d, adapted to reciprocate in an airvent hole, I), as and for the purpose specified.

In testimony that I claim the foregoing I have hereunto set my hand in the presence of two witnesses.

JAMES H. BLESSING.

\Vitnesses:

CHAS. W. BAOKUS, JOHN W. WHnnLocK. 

